Silver Book Fact
1/4 of all deaths in the U.S. are attributable to heart disease.
Kochanek K, Xu J, Murphy S, Minino A, et al. Deaths: Final data for 2009. National Vital Statistics Report. 2011; 60(3). http://www.cdc.gov/nchs/data/nvsr/nvsr59/nvsr59_04.pdf